Structure Independent Ladder

[çeter]

hello everyone, do we define an extra load on the beams when making stairs independent of the structure in idecad or...? We would be glad if our valuable masters could inform us, briefly, what are the steps when analyzing the stairs independent of the structure? Or can we show the stairwell as a thin plate?

 

[cakilomer]

As far as I know, when the solution is made independently of the structure, the loads are transferred, but the response spectrum option is left to the user, so it does not work with the structure in an earthquake. but loads are transferred only if the support conditions are determined correctly. good work

 

[HakanŞahin]

If you make a solution with a fully rigid diaphragm, you should give the ladder load to the surrounding elements as an external load. If you make a solution with a semi-rigid diaphragm, you do not need to give the ladder load to the surrounding elements, as the ladder-structure can be solved together.

 

[çeter]

How can we transfer the stair load to the beams when I analyze at a fully rigid diaphragm?

 

[HakanŞahin]

This link will help you: Defining External Load for Columns, Panels and Beams:

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[çeter]

Hakan, how long is the analysis time for the building with z+3 and 250m2 when the analysis is made with the estimated semi-rigid diaphragm?

 

[erhanbaytak]

What do you mean by analysis time? analyzes in seconds on my own computer. However, this is about your computer. If your computer is old, it may take a while.